Booklet 3.2 Tips and Advice
8 WARNING
• Alw ays remembe r that vehicle alterations
or modifi cation s can affec t the function of the
ABS, BAS, EDL and ESP syste ms. Exampl es of
t h ese a ltera ti ons or modifications include a
diff ere nt wheel/tire combination and brake or
c h ass is modification s =q1age 28, "Repairs and
t ec hni cal modifications".
Electronic differential lock {EDL)
WARNING (continued)
• Changing the vehicl e suspension or usin g
unapp roved tire I rim combination can
c h ange the way the ABS, BAS, EDL and ESP
sys tems work and re duc e th eir elJect iveness.
• The eff ec tiveness of ABS is a ls o d etermined
b y th e tir es on your vehicle
51, "Tires
and wheels"
The elect roni c differential lock helps red uce th e los s of traction if a wheel starts
s pinnin g.
T he E DL help s th e ve hicle mov ing, accel
era te and climb a gradient when t he going ge ts
s li pp ery where m ov ing ahea d ma y otherw ise be
diffi cult or eve n im possibl e. EOL u ses the AB S
se nso rs to monito r th e spe ed of t he w hee ls.
EDL works on ly when the eng ine is runnin g.
EDL can help to ba la nce out differen ces in the
rotat io n of the w hee ls of a ppro ximat ely
JOO rpm
ca use d by sli ppery gro und surface on side of the vehicl e. It do es thi s by braking th e whee l
t h a t h as los t tracti on and d is tributing more
d riv ing fo rce to the oth er d riven wheel v ia th e
diff ere nt ia l
E DL is ac tive at sp ee ds up to a bout
50 m ph (80 km /h).
E DL autom atically shut s
to pr event th e di sc
brak e of th e w hee l from over heating
under excess ive loa ds. Th e ve hicle re main s op
era tional the
way as ve hicl e without EDL.
For this reas on. the dri ver is not in form ed tha t
t h e EDL has been shu t
ED L w ill auto matica lly sw itch on again when th e
br ake ha s coo le d down.
4 Smart technology
8 WARNING
Always adjus t your driving to the road, and weather condition s. Never le t th e ex tra
sa fe ty that EDL can prov ide te mpt you into
takin g extra ri sks.
• When accelerating on a slippery surfa ce,
for example on ice a nd snow , pr ess the acce l
e rator care full y. De spite ED L, th e w hee ls may
s ta rt to spin lead ing to a loss of vehicle control.
8 WARNING
• Always remember that vehicl e alt erations
o r modifi cation s can affect the fun ction of the
AB S, BAS, EDL and ESP sys tems . Exa mple s of
th ese alt era tion s or modifications include a
di!Tcrenl wheel/tire combination and brake or
chass is modifications =q1age 28, "Repair s and
t ec hni cal m odi fication s".
• Changin g t he vehicle su spen sio n or using
u napprove d tire
I rim comb ination ca n
c hang e the way the ABS , BAS, EDL and ESP
systems work and reduce their
effective ness
Booklet 3.2 Tips and Advice
help s th e ve hicl e to sta rt mov ing.
a cc ele rat e a nd climb a grad ient in slipp ery con
di tio ns w her e thi s m ay other wise be diffi cult or
ev en impo ssibl e.
WARNING
Alway s adj ust you r driving to the road, traffic
a nd weather condition s. Do not l et the extra
WARNING (cont inu ed)
safety that ESP and can provid e tempt
yo u into taking extra risks.
• Always drive safely .
• ESP and ASH can not defy the laws of
physics. Slipp ery and wet roads are dange rous
even with ESP!
• ESP and AS H cannot reduce the risk of ac
cident, for examp le if you drive too fast for
condi tions or if yo u do not keep your distance
from the vehicle in front of yo u.
WARNING
• Alway s remember that vehicle alterations
or modifi cations ca n the function of the
ABS, BAS, EDL and ESP sys tems. Examp les of
these altera tio ns or modifications include a
different wheel/tire combination and brake or
c h ass is modifications
28, "Repa irs and
technical modifications".
• Chan ging the vehicle suspension or usi ng
un approve d tire
I rim comb ination can
change the way the ABS, BAS, E DL and ESP
sys te ms work and red uce their effective ness.
• The elJec tivencss of ESP is also determined
b y the tires fitted
51, "Tires and
wheels ".
d iu s o f th e tir es ca n c ause the syste m to re du ce
e n gin e po we r - eve n w hen thi s is not th e bes t
thing
to d o und er th e ci rc um stan ces . '4
Smart technology 5
Booklet 3.2 T ips a nd Advice
Power steering
011 vehicles with pow er stee ring , th e of power ass ista nee is regu lated e lec
t roni call y acco rdi ng to vehicle speed, stee rin g wheel torque and stee rin g w hee l
angle.
Th e power assis tance prov ided in the power
s te erin g sys te m is not hydrau lic, but m e
c h ani ca l usin g an elec tric mot or. The adva n
t a ge s of this steer ing system includ e th e fact th at
n o hydra ulic co mponents such as hoses, o il co n
t a in ers ,
o r fl uid s are re quired.
Fu rth ermo re , t his is co nsiderable de crease in
e n ergy req uir e d . T he e lec trome chani ca l s tee rin g
sys te m . in contras t to th e hydrau lic sys te m
(w hich re qu ires a co nstant flo w of fluid ), only
co nsume s energy when th e ve hicle is actua lly
be ing stee re d.
T he fu el consump tio n i s re du ced as a res ult.
If th e electro mec han ica l p owe r stee ring sys te m
fa ils, the pow er a ssis ted stee ring system
w ill still
work. If th e engin e is sw itch ed off, the pow er s
teer ing does no t fun ctio n and th e steer ing
wh eel is ve ry hard t o tu m .
WAR NING
Turning th e s teer ing whe el is very w hen t he power s tee rin g sys tem is n ot
work ing and it is harder to co ntrol the veh icl e.
• Neve r le t t he veh icle coast with th e engine
swit ch ed off.
Do no t kee p th e steer ing wheel turned all the 10 left or righ t fo r m ore than 15 seco nds
w hen th e e ngin e is runnin g. Doin g so co uld
damag e th e powe r steer ing
Data
H eco rder (EDH ), in sta lled by so me manufa c
tur ers
the exp ress purpo se of ca pturing data
fo r retr ieva l aft er an acci den t or cra sh eve nt.
are so metimes called "cras h recorders".
So me s tat e laws res tr ict t he re tri eva l or down
loadin g of da ta sto re d by ED
that were in
s ta lled in a vehicle for the exp ress p urpose of re
tr iev ing dat a af te r an acc ident or crash event
wit hou t th e Owner's conse nt.
your vehicl e is not equipped with an it is equipp ed with number of e lec tro nic
contro l modu les for variou s vehicle sys te m s
s u ch as, fo r ex am ple . e ngine function, em iss io n
6 Smart t echno logy
co ntrol, as we ll as fo r th e airbags and safe ty
be lts.
The se elec tronic con trol mod ules also
ve
hi cle-re late d dat a dur in g nor mal ve hicle ope ra
ti on for diag nos tic and re pair purp oses. The re
cordi ng capaci ty of the e lec tron ic co ntro l mod
ul es is limit ed to data (n o so und is record ed ) a nd
on ly a small amo unt of data is ac tually reco rde d
ove r a very limited p eriod of tim e and stor ed
a sys te m fau lt or o th er co ndition is se nse d by co ntro l un it. So me of dat a th en sto red
m ay re late to ve hicle sp ee d, direc tion, braking as
well a s res traint system use and performan ce in
th e eve nt of a cra sh or o th er conditi on. S to red
c an only be rea d and downloade d wit h spe
cia l
Locks
Lock cylinders can freeze in winter.
To d e-ic e th e lo ck cylin ders use a sp ecial lo ck
cy lind er de- ice r spra y wit h lubri cating anti ·
corrosive
Cleaning chrome parts
- Cle an chrom e part s wi th a damp cloth.
- Po lish chrome part s with a so ft, dry
cloth .
You can als o u se s pecial chrome cleaner.
C hrome cleaners will help re mov e surfa ce grime
a nd stain s from chrom e surf aces.
Cleaning alloy wheels
Every two weeks
- Was h sa lt and brake du st off alloy
w heel s.
- Use an ac id free dete rgen t to clean the
w hee ls .
Every three months
- Appl y a har d wax compound to the
w hee ls .
Li ght alloy whee ls req uire reg ular car e re mo ve
road sa il a nd brak e by reg ularl y wa shi ng w hee ls, other wise fini sh will du ll and they
wi ll be hard lo clean.
Alwa ys use a n ac id-fr ee dete rge nt for alloy
w heel s.
Do not u se vehicle polis h or oth er abra sive
u cts . I f prot ective coat ing is damag ed , fo r amp le by s tone impact, th e dama ged area
s h ould be re pair ed imm edi ate ly.
Booklet 3.2 Tips and Advice
Note
To pre vent scra tc hin g chrom e surfaces:
• Do not use an abra sive care pro duct on
c hr om e.
• Do
clean or polish chr ome are or dusty or clean or p olish in sand y
o r dusty
WARNING
I mp roper use of power washers ca n ca use rious, invis ible and permanent tire damage
l ead ing to tire failure and lo ss of ve hicle
trol.
• Neve r was h tires with a jet that sprays the
water out in a direct stream eve n from a
tance or for a very short time.
WARNING
Wet brak es or brake s coated wi th ice or road
sa lt react slower and need longer sto pping
tan ces.
• Carefu lly appl y brak es for a
• Always dry brake s and clea n off ice ings and salt coating s with a few cauti ous
brake applications.
• Alw ays read and h eed all WAR NIN GS
8, " Brakin g pow er and braking
Cleaning and protection 21
c£> For the sa ke of e nvironment
Batte ries
1ox ic s ubstan ces includin g sul
furi c acid and le ad . Th ey mus! be dis posed ap
p ro pria lc ly an d 110 1
ord inary garbage.
Tires and wheels
Genera l notes
Booklet 3.2 Tips and Advice
Tips
Wh en !h e ba ttery is reconne c1e d .
warning
li gh l for 1he S1abi lization Program
(ES P). (AS RJ ma y lig ht up
a nd sla y on. go out if yo u dri ve briefly in a line al a sp eed of 15 20 km /h .
Tires may le n st appr eciated and most abus ed parts of motor vehicle.
Tire s ma y be 1h e appr eciale d and mo st
ab use d pans of rn o!O r ve hicl e. Tire s are,
ever . o ne mo s! pans ofa ve
h icl e. p arli cula rly co nsid erin g comp arasmall o f rubb er on eac h tir e th al as
s ure s all-imponanl b etwee n yo u,
your vehicl e
road.
Mainl ainin g 1h e c orr cc1 lire pressure , ma kin g
s ur e
vehicl e an d i1s 1ir es do 1101 have to
ca rry mor e !hey can safe ly hand le ,
a vo iding dam age from haz ards and regu
larl y in spec lin g !ir es fo r d am age including
slas hes ir reg ular wear and co ndi tion are
th e mos! impor lan 11hin gs you ca n do lo
h elp avoid sudd en lire f ailur e includ ing tread
se para lion and hlo wo u1s.
Avoiding damage If yo u ha ve
dri ve ove r a cu rb or sim ilar ob
s tacl e, dri ve ve ry s lowly a nd as cl ose as po ssib le
a l a rig h1 angl e 10
curb.
ke e p ch emi ca ls including g rease. o il. gas
o lin e an d brak e fluid off 1 he 1ires .
ln spe cl
1ir es regul arly fo r damag e (c ut s.
c ra cks or c1c.J. any foreign
bo dies em bed de d in ! r e ad s.
Storing tires
Mark lires when yo u r em ove th em
to indi cale dire cti on T hi s ens ures y ou 10 be hie 10 m ou nl when yo u rein sta ll
!h em .
W hen
1h e whee ls or 1ires s hou ld be
s tor ed in a cool, dry and preferab ly dark place. S
!o re tir es in
a ven ica l po sil ion if th ey are 1101
m ount ed on rim s, in a horizo ntal pos i1 ion if1h ey
are mou n1ed on rim s.
New tires
!ir es have to be broke n
The !r ea d ofn ew lir es may vary, accor ding
10 1h e 1y pe and mak e of li re an d 1h e tre ad pat
l e rn.
Hidd en damag e
!ir es rim s is 11 01 r ead ily vis
ibl e. you n olice unu sual vibral ion or !he vepull s 10 one side, !his may indi cale th al o n e or 1h e 1ires be en dama ged. The tir es mu st b e
c h ec ke d imm ediale ly by an auth ori zed Vo lk
s wag en dea ler or qua lifi ed wo rk sh op.
U nidirectiona l tires
A unidir ec1ional lir e can b e id e111 ifi ed by arro ws
o n 1h e sid ew all , 1h a1
in 1he dir ection 1h e
l ire is designe d 10 ro la!C. Yo u must fo llow 1h e
s p ecifie d direc1 io n of ro 1a 1ion. This is necessa ry
so
1h es e 1ires de velo p !heir rega rding grip , road noi se, we ar
an d hydro plan ing For m ore info rm a
lion " Unidi re c tional 1ir es".
WARNING
tir es or !ires th al arc o ld, worn or dam
aged cannol provide max imum control and
brak ing abilil y.
• New tir es len d to be s lippery a nd mu st be
broken in.
re duce !he r is k of losin g conlrol ,
a co llisio n and serious pe rso nal injur ies, dri ve
Checking and Filling 51
Booklet 3.2 Tips and Advice
WARNING (continued)
with special care for the fir st 35 0 mile s
( 560km ).
• Driving with worn or dam aged tires can
l ead to los s of co ntrol, sud den tire failure, in
clud ing a blowout and sudden deflation,
cras hes and se riou s perso nal injurie s. H ave
worn or damaged tires rep laced immediat ely.
• Tires age even if th ey arc not bein g used
a n d can fail sudd enl y, es pecia lly
at high
s p ee ds. Tire s th at ar c mor e than 6 yea rs old
WARNIN G (contin ued)
ca n onl y be use d in an em erge ncy and then
w ith specia l ca re and at lo w er sp eeds.
• Neve r m ount u sed t ires on yo ur vehicl e if
you arc not s ure of th eir "pre vio us hi story."
Old use d tir es ma y have been dama ged eve n
t h ough th e damage cann ot b e see n that can
l ea d to sudd en tir e fa ilur e and loss of vehicle
contro l.
• If yo u notice unu sual vibrat ion or if th e ve
hicle pull s to one sid e wh en drivin g, a lways
stop as soo n as it is safe to do so and check the
wheels and tires for dam age.
Glossary of tire and loading terminology
Accessor y weight
m ea ns th e comb ined weigh t (in excess of those
s tand ard item s wh ic h may b e re p laced ) of auto
matic tran sm iss ion, powe r stee ring . power
brake s, pow er wind ows, powe r se ats. radio, a nd
heat er, to th e ex tent that th ese item s are ava il
ab le as factory- in st all ed eq ui pment (w heth er in
s talled or not).
Aspect ratio m ea ns th e ra tio of th e heig h t
th e wid th of th e
ti re in perce nt. Numbers of70 or lowe r ind icat e
a sh ort sid ewa ll for imp roved steering r espons e
a nd be tter ove rall hand ling d ry pa vement.
B ead
m ea ns th e pan oft he tire that is m ade of stee l
w ires, wrapp ed or reinfor ced by ply cords and
t h at is s hape d to
th e rim .
B ead separation
mean s a breakdow n of th e bo nd b etwee n com
p on ent s in the bea d.
Cord mea ns th e s trands for ming the plies in t he tire .
Cold lir e inflation pressure
m ea ns th e tire press ure reco mmend ed by the
ve hicl e m anu factur er f or a tire of a des ig nate d
s ize th a t ha s not b ee n d rive n for th an a co up le of
m iles ( kilomete rs) at low sp eeds in th e thr ee
h our peri od befo re th e tire press ure is m eas ured
or ad juste d.
52 Checking and Filling
Curb weig ht
mea ns th e weig ht of
a moto r ve hicle sta n
dard equipm ent in cluding th e maxi mum ca
paci ty o f fuel. oil. a nd coolant, air co ndition ing
and additional weight of o ptional equipme nt.
Gr oss Axle Weight Roting
m ea ns th e load -ca rryi ng ca pacity of a sin gle axle
sys tem, measured at th e tire-gro und in te rface s.
Gro ss Vehicl e W eight Roling
means th e max imum t otal load ed weig ht of the
ve hicl e.
Groo ve
m ea ns th e spa ce betw een
ad jacent tread
r ib s.
L o ad rotin g (cod e)
m eans the maximum load that
tir e is ra ted to
carry for a given inflation press ure. You may not
this o n all tir es bec ause it is not
required by law.
Ma ximum load roting
m ean s th e load rating for
tire at th e perm iss ible inflatio n pressu re for that t ir e .
Ma ximum load ed ve hicle weig ht
mean s th e
of:
(a) C urb weig ht,
( b ) Accesso ry weight,
( c ) Vehicle capa city weigh t, a nd
(cl ) Pro duction o ptions we ig h t.
Maximum (permissible) inflation pressure means the maximum cold inflation pressure to
which a tire may be inflated. Also called "max imum inflation pressure."
Normal occupant weight
means
150 lbs. (68 kilograms) times the number
of occupants seated in the vehicle up to the total seating capacity of your vehicle.
Outer diameter
means the overall diameter of an inflated new
tire.
Overall width means the linear distance between the exteriors
of the sidewalls of an inflated tire, including ele
vations due to labeling, decorations, or protec tive bands or ribs.
Ply
means a layer of rubber-coated parallel cords.
Radial ply tire
means a pneumatic tire in which the ply cords
that extend to the beads are laid at substantially
90 degrees to the centerline of the tread.
Recommended inflation pressure
see
52, "Cold tire inflation pressure".
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nominal diameter of the bead seat . If you
change your wheel size, you will have to pur
chase new tires to match the new rim diameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges.
Sidewall
means that portion of a tire between the tread
and bead.
Booklet 3.2 Tips and Advice
Speed rating (letter code) means the speed at which a tire is designed to be
driven for extended periods of time. The ratings range from 93 mph (150 km/h) to 186 mph
(298 km/h). These ratings are listed in the table
below 62. You may not find this informa
tion on all tires because it is not required by law.
The speed rating letter code, where applicable, is molded on the tire sidewall and indicates the
maximum permissible road speeds.
Tire pressure monitoring system
1 )
means a system that detects when one or more
of a vehicle's tires are underinflated and illumi nates a low tire pressure warning telltale.
Tread means that portion of a tire that comes into con
tact with the road.
Tread separation means pulling away of the tread from the tire
carcass.
Tread wear indicators (TWI) means the projections within the principal
grooves designed to give a visual indication of
the degrees of wear of the tread. See
59, "Tread Wear Indicator (TWI)" for more informa
tion on measuring tire wear.
Uniform Tire Quality Grading
is a tire information system developed by the United States National Highway Traffic Safety
Administration (NHTSA) that is designed to help buyers make relative comparisons among tires.
The UTQG is not a safety rating and not a guar antee that a tire
will last for a prescribed number
of miles or perform in a certain way. It simply
gives tire buyers additional information to com bine with other considerations, such as price,
brand loyalty and dealer recommendations .
Under UTQG, tires are graded by the tire manu
facturers in three areas: tread wear, traction and temperature resistance. The UTQG information
on the tires, molded into the sidewalls.
U.S. DOT Tire Identification Number (TIN)
This is the tire's "serial number."
It begins with
the letters "DOT" and indicates that the tire
meets all federal standards. The next two num-
Tire pressure monitoring system)
Checking and Filling 53
"Tires and ve hicl e lo ad limit s" for more imporinfor mati on.
Vehicles
ha ve full hub caps have valve ex
tenders ins tead of du st caps. To ch eck tire pr es
s ur e or acid air. you do not n eed to re move the
ex te nd er. 13e s ure to rein sta ll va lve dust caps
ch eck ing or adjust ing tir e pr ess ure.
A lways use an
tir e pr ess ure gaug e w hen
c h eck ing and adju stin g i nfl atio n pr essu res .
C hec k all of the
and b e sure not l o forg et th e
s par e tire. If p ress ure in an y is too high
w hen the tire is "co ld," let o ur of the tir e
s lowly with th e of the tir e ga uge and kee p
c h eck ing th e press ure until you re ac h th e pr es
s ure that is correc t for th e loa d (pa sse nge rs and
l u gg age)
ki nd of dri ving yo u plan t o do .
I f th e pr ess ure in any tire is too low , n ote the dif
f e re n ce between the press ure in the co ld
a nd
th e pr ess ure yo u need and add air yo u
n eed to reac h th e co rrect press ure for the vehicle
load (pa sse nge rs and lu ggage) for th e tire s on
yo ur vehicle as listed o n the on yo ur vehicle a nd
in thi s man ual
th e kind of driv ing y ou p lan
t o do .
Neve r excee d th e maxi mum infl ati on pre ssure
li sted on the tir e sid ewa ll for any reason.
R em emb er th at the ve hicle manufac turer, not
t h e tir e man ufa ctur er, de te rmin es th e co rrec t
t ir e pr ess ure for th e tir es o n yo ur vehicle
I t i s imp ortant
ch ec k th e tir e pr ess ure when
the tires are cold.
Vehicle witho ut
• the re quir ed tire pressure from the tir e
pressu re lab el on the ope n edge of th e dri ver's
door .
• Place the a ir press ure gauge on the dust cap s
- th ere is no need
re m ove them.
• The tir e press ures s ho uld onl y be checked
tire s cold. The sli ghtl y pres
s ur es ofwann tires no t b e reduced.
•
th e tire press ure to the load you are
ca rrying.
Vehicle with
• the req uir ed tir e pr ess ure from the tir e
pressure label o n th e ope n edge of the dr ive r's
do or.
Booklet 3.2 Tips and Advice
• Turn th e va lve s tem cap counter-clockw ise to
r emove it from the tire valve.
•
th e ai r press ure on the valv e.
• The tir e pressures sh o uld onl y be ch ecke d
w hen th e tir es are cold. T he slig htly rai sed pres
s ur es of
tires not be redu ced.
• Adju st th e tir e pr ess ure to the load you are
carry ing.
• Reins tall the valv e ste m cap on the valve.
When should I ch eck the tire pressure?
Th e co rrec t tir e pr ess ure is especia lly import ant
a t hi gh speeds . Th e pre ssur e s ho uld th erefo re be
c h ecked at leas t once a month and alwa ys befo re
s ta rt in g a jo urn ey. D o not forget to ch eck the tire
pr ess ure on th e spare whee l
When shou ld
I adjust the tire press ures?
Ad just th e tire press ure to the loa d you are car
ry ing. After changin g
wheel or repl acing
w hee ls yo u have tu adj ust th e tir e press ures on
a ll whee ls. In ad ditio n on ve hicles wit h TPMS,
yo u sh oul d s pecify new tire pressures
=boo klet
WARNING
In co rrec t tire press ure ca n result in sudd en
ti re failur e Jo ss of co ntrol, collision , seriou s
perso nal injur y an d eve n dea th .
•
tire s to the re co mm end ed and
co rrec t tir e pre ssure before drivin g off.
• Driving with und erinfl atcd tires bend
m or e, le ttin g th em get too hot res ulting in
tr ead separatio n, s udd en tir e fai lure ti re
fa ilur e and Jo ss of control.
• Excess ive sp ee d and /or ove rload ing ca n
ca use hea t build -u p, su dden tire failure in
cludin g a bl owo ut an d su dden deflati on and
Jo ss o f co ntrol.
• If th e tire pr essure is to o low or too high,
th e tir es will wear prema turely and the ve hicl e
wi ll not handl e we ll.
Not e
Dr iv in g w ith out valve s te m caps ca n cau se
applicab le Tire pressure monitoring system)
Checking and Filling 57